Valentine is holding onto a new mysterious weapon – and it's apparently dangerous!

The Mortal Cup may be needed to create new Shadowhunters, but it seems the Mortal Sword can kill anyone. This is not the weapon for a villain to own! Jace should've stolen it back...

On Shadowhunters Season 2 Episode 6, we learned about the true significance of the Mortal Sword from the powerful fighters themselves, the Iron Sisters.

We can all agree that this weapon could cause some serious harm. Valentine has done enough damage with the Cup – this sword could destroy all. That's dangerous for our group.

Does anyone else think Clary will be the one destined to wield the blade? It's not just because she's the main character. The clues are starting to mount.

An "angelic being" is said to use the blade. Clary knows a rune that fires sunlight from her hands. Coincidence, I think not!

Even Sister Cleophas looked genuinely nervous at the sunlight.

Speaking of Sister Cleophas, is she working with Valentine?

I didn't expect her to turn against her Sisters and kill one of them. This was a surprising twist from the writers. I thought she could be trustworthy and a support for Clary.

Having her be Luke's sister was also a nice touch. It gave a bit of background to his character, especially since he mentioned being disowned by his family. I hope (and fully expect) to see a meeting between them.

He's a powerful werewolf. She's a deadly fighter. This could be an epic fight scene!

My heart goes out to Luke this episode. He's suffered so much since Jocelyn was murdered. He really loved her and wanted to be with her.

After the cliffhanger on Shadowhunters Season 2 Episode 5, his reaction seemed a bit up in the air. I wasn't sure what it meant in the context of the episode then. However, now it seems he couldn't handle his grief.

When I heard Jocelyn die, I've never felt pain like that...not since my family disowned me.

Luke

• Permalink: When I heard Jocelyn die, I've never felt pain like that...not since my family disowned me.

We all go through loss in different ways. I quite enjoyed how the show portrayed his version of grieving, and how he handled it. The special effects of him transforming into the wolf were done well.

The special effects have vastly improved since last season. The wolf didn't look cheesy or come across as too CGI. It all worked for the emotional seriousness of the scene, from the green eyes to the fur.

Overall opinion on Maia and Simon: friendzone or potential romance?

I'd like to see them give it a shot. They had a spark in the car and they were getting along well enough. Besides, they do look cute together.

Maia: Look man, I've been through some horrible things as well, so I get it.
Simon: Like what?
Maia: Okay, I've actually never told anyone about this. But you know that nightmare you have about showing up to school naked? Well, after an unexpected transformation, I came out of it butt naked and late for Calculus. It was horrible!
[Laughs]
Simon: What did you do?
Maia: I hid in an empty classroom until everyone left. Luckily, I found a band uniform to wear. In hindsight, it would've been less embarrassing to just BE naked.
[Laughs]

• Permalink: Okay, I've actually never told anyone about this. But you know that nightmare you have about sho

Shadowhunters execs Todd Slavkin and David Swimmer, and author Cassandra Clare, did tease that Maia would play a bigger role in causing friction for some characters. This seems to be coming true already. Clary was giving Maia serious side-eye in the restaurant!

Though, I don't think that is because she's in love with Simon; it's going to be more about friendship. Simon and Maia could work out – he just needs to notice. She was clearly playing it cool.

The flashback this episode didn't feel too heavy-handed. I liked that it was a simple scene of Maia and Luke meeting for the first time. It feel emotional and you could understand the trust between them.

Maia: I don't have anyone who cares about me.
Luke: You do now.

• Permalink: I don't have anyone who cares about me.

The opposite, however, is being put to the test between Clary and Isabelle.

I've said in the past their friendship is one of my favorites on the show. The characters have great chemistry together and I've enjoyed their banter in previous episodes, especially the Art of War lesson. However, Isabelle's "dark path" could change things.

Victor Aldertree is a villain; he is no longer simply a nuisance. He knows what he's doing and he's manipulating the others to get what he wants. Drugging Isabelle was just plain evil.

He is incredibly lucky that Jace didn't start a fight when he blackmailed him. Isabelle may be under the spell of the drug, but Jace is angry and has nothing to lose. That scene could've gone a completely different way.

There are so many questions left up in the air because of Victor this episode: Why is he so dead set on getting rid of Jace? Is the drug he's giving Isabelle turning her into a vampire? Does Victor want Clary dead?

Victor Aldertree is the worst. (Clearly, I love-to-hate this character.)

Now onto a big topic of discussion: The "Malec" date!

Was their first date a success? I think it's yes and no. They didn't have fun, but they're going out again, which is half a success.

I went into the episode a Malec fan. (The shipping is real!) But seeing how it played out, it didn't turn out the way I expected. It wasn't about grand gestures – they seemed awkward together.

Alec is a character going through a real struggle and adjusting to a new stage in his life. It's great to see the writers highlighting this; he and Magnus are at completely different points. (And 17,000 past relationships IS A LOT to have!)

Alec: How many?
Magnus: How many...
Alec: It's not a trick question. You can round down, if you want.
Magnus: Okay, if you want to know I'll tell you...17.
Alec: 17. That's...
[Sees worried look]
Alec: 1700? 17,000?!
Magnus: It was all in the past! Ancient history. Right now, I'm here with you.
Alec: And me...and 17,000 other memories.
Magnus: Look, I am who I am. You are who you are. All the magic in the world can't change that, so let's just try to make the best of it.
Alec: Sure.

• Permalink: It was all in the past! Ancient history. Right now, I'm here with you.

The ship is still alive. Hopefully there will be plenty of dates for them to ease into a natural rhythm and comfort. However, if it does continue to look stiff and feel awkward, we might have to admit they have don't chemistry, Malec fans.

But, in the mean time, we can all agree on one thing: Jace has the worst timing ever!

What did you think of "Iron Sisters"? Is Isabelle's life in danger with this toxin? Will Malec's next date go smoothly? Is Maia and Simon the next big romance?

If you missed the latest episode of Shadowhunters, you can watch Shadowhunters online via TV Fanatic. Come back here and let us know what you think.

Justin Carreiro was a staff writer for TV Fanatic. Follow him on X.